Forum: Reliability & Maintainability Questions and Answers
Topic: Reliability & Maintainability Questions and AnswersTopic Posted by: Reliability & Maintainability Forum (firstname.lastname@example.org )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998
Original Message:Posted by: Tom
Date posted: Mon Mar 5 16:17:46 US/Eastern 2007
Subject: B Life Formula
This formula was provided as a method for calculating B life as a function of the number of failures and test time. I am not quite sure of its derivation. Any thoughts would be appreciated. Thanks.
BLIFE = SQRT (∑(accel hr)2 (ln ( 1/reliability)) / chi-Square (1 – desired confidence), (2n + 2))
n = number of failure.